Wimbledon organizers have apologized and explained that “human error” was the reason behind the electronic line-calling system being turned off during a match on Sunday.

CENTRE COURT, THE ALL ENGLAND CLUB — Anastasia Pavlyuchenkova suggested her British opponent may have received preferential treatment as simmering tensions around Wimbledon ’s use of electronic line calling (ELC) instead of line judges boiled over Sunday, when the technology malfunctioned at a crucial point on Centre Court.

Wimbledon issued an apology following their failure of their new Electronic Line Calling (ELC) system amid the Women's Singles contest between Anastasia Pavlyuchenkova and Sonay Kartal. The controversy came to light after Pavlyuchenkova accused the German umpire of being 'scared' to make a decision against 'local' Sonay Kartal in the tournament.